Non-Traditional Career Routes?

Dave Bieler asks: "With such a broad range of interests in science and technology, it was not easy for me to decide on a major in college. Currently, I am an Electrical Engineering major at Penn State, however I have considered several other majors: Computer Science, Computer Engineering, and Physics. Since science and technology is booming, it may be possible to get into a career in an area other than that traditionally associated with certain majors. ex - a Physics major becoming a Computer Security specialist. I'm curious to hear about any careers that were preceded by non-traditional paths." Speaking as an Electrical Engineer who decided to drop that and go into computers, this question strikes a bit of a chord with me. Has anyone else gone to college intending to prepare for one career, only to fall into another, either by luck or design?